Differential diagnosis between pancreatic neuroendocrine and solid pseudopapillary neoplasms on endoscopic ultrasound-guided fine-needle aspiration

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden

From the Division of Pathology (Raddaoui, AlShedoukhy, Almutrafi), Alfaisal University, the Division of Gastroenterology (Almadi, Aljebreen), Department of Surgery (Alsaif), College of Medicine, King Khalid University Hospital, King Saud University, the Division of Gastroenterology (Allehibi), Division of Surgery (Almohameed), King Fahad Medical City, Riyadh, the Division of Pathology (AlAbbadi), King Fahad Specialist Hospital, Dammam, Kingdom of Saudi Arabia, the Division of Gastroenterology (Almadi), The McGill University Health Center, Montreal General Hospital, McGill University, Montreal, Canada, the Department of Oncology and Pathology (Tsolakis), Karolinska Institutet, Stockholm, and the Cancer Center Karolinska (Tsolakis), Karolinska University Hospital, Stockholm, Sweden